Welding Inspection Welding Symbols Course Reference WIS 5
Welding Symbols Weld symbols are used to transfer information from the design office to the workshop and contain five basic components
The arrow line: line: the arrow line must touch the joint reference area on the drawing
The reference line: the reference reference line line must touch the the arrow line and is generally parallel with the bottom of the drawing page
The symbol: the vertical line in the the symbols symbols for a fillet fillet weld, single/double bevel butts and a J-butt welds must always be on the left side.
The dimensions: In most standards the cross sectional dimensions are given to to the left side, and all linear dimensions are give on the right side
Supplementary Supplement ary information: such as welding process, weld profile, NDT and any special instructions
BS 499: part 2. Welding Symbols Other side Reference line
Arrow side
Arrow line
Other side
Arrow side
Both sides
BS 499: part 2. Welding Symbols a
b
c
d
BS 499: part 2. Welding Symbols
Flat
Convex
Concave
Toes shall be blended
BS 499: part 2. Welding Symbols
Field weld (site weld)
NDT
The component requires NDT inspection
Welding to be carried out all round component (peripheral weld)
WPS
Additional information, the reference document is included in the box
BS 499: part 2. Welding Symbols Peripheral Welds
10 10
8 8
10
8
BS 499: part 2. Welding Symbols a = Design throat thickness s = Actual throat thickness b = Leg length (min material thickness) a = 0.7 of b
a4 b b6 6mm Leg
a
s
4mm Design Throat
s5 5mm Actual Throat
BS 499: part 2. Welding Symbols
5 5
5 8
8
OR 8
All dimensions in mm
8 5
BS 499: part 2. Welding Symbols n
x
l
(e)
n l
(e)
= number of weld elements = length of each weld element = distance between each weld element
Welds to be staggered
3 x 40 (50) 2 x 40 (50)
111 Process
BS 499: part 2. Welding Symbols All dimensions in mm 6
80
3 x 80 (90) 3 x 80 (90)
8 6 80
80
6 8
90
90
90
8 5 6 6
80
80
3 x 80 (90) 3 x 80 (90) 80
6
5 5
90
90
90
BS 499: part 2. Welding Symbols
Single-V Butt
Single-V Butt flush cap
Single-U Butt
Single-U Butt with sealing run
BS 499: part 2. Welding Symbols
Single-bevel butt
Double-bevel butt
Single-bevell butt Single-beve
Single-J butt
BS 499: part 2. Welding Symbols
10
10
Partial penetration single-V butt
BS 499: part 2. Other Welding Symbols
Plug weld
Square Butt weld
Spot weld
Single-V Butt broad root face
Seam weld
Edge flange weld
BS 499: part 2. Flared flange Welding Symbols
Joint detail
Joint detail
BS 499: part 2. Numerical Indication of Process 111: 11 1: MM MMA A we weld ldin ing g wi with th co cove vere red d el elec ectr trod ode e 121: 12 1: Su Subb-ar arc c we weld ldin ing g wi with th wi wire re el elec ectr trod ode e 131: MIG welding with inert gas shield 135: 13 5: MA MAG G wel weldi ding ng wi with th no nonn-in iner ertt gas gas sh shie ield ld 136: Flux core arc welding 141: TIG welding 311: Oxy-acety tyllene weld ldin ing g 72:
Electro-slag welding
BS 499: prt. 2 Butt Weld ex: 1 Complete the symbol drawing for the welded cruciform joint provided below All welds are welded welded with the MIG process and and fillet welds with the MMA process
7 35 15
10 20 30
All fillet weld leg lengths 10 mm
BS 499: prt. 2 Butt Weld ex: 1 Complete the symbol drawing for the welded cruciform joint provided below All welds are welded welded with the MIG process and and fillet welds with the MMA process b10 30
131 / 111
20
7 35 15
10
b10
20 30
b10 a 7 35 131 / 111 15 b10
All fillet weld leg lengths 10 mm
BS 499: prt. 2 Fillet Welds ex: 1
6 6
1. Wel elde ded d bo both sid ides es:: A continuous concave fillet weld 6mm leg lengths.
2. Weld Welded ed ar arro row w si side de:: Three intermittent fillet welds, 6 mm leg lengths, the length of each weld 20 mm, the distance between each weld 30 mm. Welded other side: Two intermittent fillet welds 12 mm leg lengths, the length of each weld 30 mm, the distance between each weld 10 mm. Welds to be staggered.
20
30
10
30
20
10
12
2 x 30
(10)
6
3 x 20
(30)
20
30
30
10
(b) 6 (a) 4 (b) 6 (a) 4
3. Weld Welded ed bo both th si side des. s. A A continuous fillet weld, 6 mm leg lengths, 4 mm throat thickness, welds to be carried out on site. 4. Weld Welded ed arr arrow ow sid side: e: Three intermittent fillet welds 10 mm leg lengths, 7mm throat thickness, length of each weld 15 mm, the distance between each weld 25 mm. Welded other side: A side: A continuous convex fillet weld, 15 mm leg length, 10.5 mm throat thickness.
(b)15 (a)10.5 3 x 15 (25)
(b)10 (a)7 15
25
15
25
15
BS EN 22553 (ISO 2553) Welding Symbols
Ans to BS EN 22553 Butt Butt Welds Welds ex: 1 M
1. Welded arrow side: Single-V butt weld with permanent backing strip, flat weld profile.
2. Welded other side: Single-U butt weld, flat weld profile
10
3. Weld Welded ed ar arro row w si side de:: Single-V butt weld depth of preparation 10 mm Welded other side: Backing run. (Plate thickness 15 mm.) 12 12
4. Wel elde ded d arro arrow w side side:: Single-J butt weld, depth of preparation 12 mm with a 8 mm fillet weld superimposed. (plate thickness 15 mm. Welded other side: 12 mm leg length fillet weld.
8
BS EN 22553 (ISO 2553) Welding Symbols
Reference lines Arrow line
Other side
Arrow side
Arrow side
Other side
BS EN 22553 (ISO 2553) Welding Symbols
Other side
Both sides
Arrow side
BS EN 22553 (ISO 2553) Welding Symbols a
b
c
d
BS EN 22553 (ISO 2553) Welding Symbols
Flat
Convex
Concave
Toes shall be blended
BS EN 22553 (ISO 2553) Welding Symbols
Field weld (site weld)
NDT
The component requires NDT inspection
Welding to be carried out all round component (peripheral weld)
WPS
Additional information, the reference document is included in the box
BS EN 22553 (ISO 2553) Welding Symbols Peripheral Welds
z10 10
z8 8
10
8
BS EN 22553 (ISO 2553) Welding Symbols a = Design throat thickness s = Actual throat thickness z = Leg length (min material thickness) a = 0.7 of z
a4 z z6 6mm leg
a
4mm Design throat
s s5 5mm Actual throat
BS EN 22553 (ISO 2553) Welding Symbols n
n
x
l
(e)
l
(e)
= number of weld elements = length of each weld element = distance between each weld element
Welds to be staggered
2 x 40 (50) 3 x 40 (50)
111 Process
BS EN 22553 (ISO 2553) Welding Symbols All dimensions in mm 6
80
z8
3 x 80 (90)
z6
3 x 80 (90)
80
80
6 8
90
90
90
8
6
80
80
z5
3 x 80 (90)
z6
3 x 80 (90) 80
6
5 5
90
90
90
BS EN 22553 (ISO 2553) Welding Symbols MR M
Single-V Butt with permanent backing strip
Single-U Butt with removable backing strip
Single-V Butt flush cap
Single-U Butt with sealing run
BS EN 22553 (ISO 2553) Welding Symbols
Single-bevel butt
Double-bevel butt
Single-bevel butt
Single-J butt
BS EN 22553 (ISO 2553) Welding Symbols
10
10
Partial penetration single-V butt
BS EN 22553 (ISO 2553) Welding Symbols
Plug weld
Square Butt weld
Spot weld
Steep flanked Single-V Butt
Seam weld
Surfacing
BS EN 22553. Flared flange Welding Symbols
Joint detail
Joint detail
BS EN 22553. Numerical Indication of Process 111: 11 1: MM MMA A we weld ldin ing g wi with th co cove vere red d el elec ectr trod ode e 121: 12 1: Su Subb-ar arc c we weld ldin ing g wi with th wi wire re el elec ectr trod ode e 131: MIG welding with inert gas shield 135: 13 5: MA MAG G wel weldi ding ng wi with th no nonn-in iner ertt gas gas sh shie ield ld 136: Flux core arc welding 141: TIG welding 311: Oxy-a -ac cetyle len ne welding 72:
Electro-slag welding
BS EN 22553: Butt Weld ex: 2
Complete the symbol drawing for the welded cruciform joint provided below All welds are welded welded with the MIG process and and fillet welds with the MMA process
7 35 15
10 20 30
All fillet weld leg lengths 10 mm
BS EN 22553: Butt Weld ex: 2
Complete the symbol drawing for the welded cruciform joint provided below All welds are welded welded with the MIG process and and fillet welds with the MMA process z10 30
131 / 111
20
7 35 15
10
z10
20 30
z10 a 7 35 131 / 111 15 z10
All fillet weld leg lengths 10 mm
BS EN 22553 Fillet Welds ex: 1
6
1. Welded arrow side: A side: A continuous fillet weld
with a 6 mm leg length , toes to be blended smoothly. 2. Weld Welded ed bo both th si side des: s: Three intermittent fillet welds with 6 mm leg lengths, the length of each weld 25 mm and the distance between each weld 40 mm.
25
3. Weld Welded ed arr arrow ow si side des: s: Three intermittent fillet welds with 10 mm leg lengths, the length of each weld 40 mm, the distance between each weld 30mm. Welded other side: Three intermittent fillet welds 6 mm leg lengths, the length of each weld 50mm and the distance between each weld 25mm, welds to be staggered. 4. Weld Welded ed ar arro row w sid side: e: Three intermittent fillet welds with 8 mm leg lengths, the length of each weld 25 mm and the distance between each weld 50 mm. Welded other side: Two intermittent fillet welds with 10 mm leg lengths, the length of each weld 20 mm and the distance between each weld 40mm, welds to be staggered.
25
30
50
25
40
25
40
40
25
50
20
30
50
25
40
3 x 25 (40)
6
3 x 25 (40) 25
40
25
40
25
40
6
40
25
10
3 x 40 (30)
6
3 x 50 (25)
40
30
50
50
20
8
3 x 25 (50)
10
2 x 20 (40)
25
AWS Welding Symbols
AWS. Welding Symbols
Root Opening
Depth of Bevel 1(1-1/8)
Effective Throat
1/8 60o
Groove Angle
AWS. Welding Symbols
Welding Process
1(1-1/8)
GMAW GTAW SAW
FCAW 1/8 60o
AWS. Welding Symbols
FCAW 1(1-1/8)
Applicable to any single groove weld
Single Bevel
AWS. Welding Symbols Welds to be staggered
3 – 10 3 – 10
SMAW Process
3
10
3
AWS. Welding Symbols Sequence of Operations
3rd Operation 2nd Operation 1st Operation 1(1-1/8)
1/8 60o
FCAW
AWS. Welding Symbols Sequence of Operations
RT MT MT 1(1-1/8)
FCAW 1/8 60o
AWS. Welding Symbols Dime Dimens nsio ions ns-- Leg Leg Leng Length th 6 leg on member A 6/8
Member A
= 6
Member B
8
